Merge pull request #33 from daniel-dgi/7.x

.xslt to .xsl fix for editing pbcores and their dc transform
Imagecache external needs tokens.
Merge pull request #34 from jordandukart/7.x

Imagecache external needs tokens.
Missing include.
Merge pull request #35 from jordandukart/7.x

Missing include.
Changing confirmation text for pbcore export form.
Merge branch '7.x' of git://github.com/DGI-USC/usc_mirc into 7.x